Share 'Things to do along I-70 from Dayton, OH to Kansas City'

We are moving back to Kansas soon taking I-70 across Middle America. We are planning on stopping in Dayton to see the Air and Space Museum. My daughter gets car sick, so we are planning on lots of stops. What is there to do along I-70 between Dayton and KC? I plan to stop in St. Louis overnight to visit friends. We'll probably be stopping in every state along the way. Thanks!